Imine-linked triazine-based conjugated microporous polymers/carbon nanotube composites as organic anode materials for lithium-ion batteries

Introduction

Experiment section

Results and discussion

材料中引入CNT之因

表徵測試(characterizations)：為確認目標產物之結構及形貌

its porous structure

chemical satbility

high conductivity

Fourier transform infrared spectroscopy (FT-IR)

X-ray diffraction (XRD)

X-ray photoelectron spectroscopy (XPS)

Scanning electron microscopy (SEM)

Transmission electron microscopy (TEM)

High-resolution TEM (HRTEM)

N2 adsorption-desorption measurement

為測試材料的thermal and chemical stability

Thermogravimetric analysis (TGA)

電化學性能(electrochemical properties)測試

Cyclic voltammetry (CV)

The galvanostatic charge and discharge (GCD)

Cycling performance at 0.1 A g-1

Long-term cycling performance at 1 A g-1

Rate capability at current densities of 100, 200, 500, 1000, 5000 mA g-1

Electrochemical impedance spectra (EIS)

To investigate the reason why CNT composites exhibit better electrochemical performance

the CV at various sweeps rates

To investigate the behavior of the lithium storage, the electrochemical reaction kinetic of CNT@TAPT-BTPA

Density functional theory (DFT)

為了計算HOMO和LUMO的能差

To essentially understand the different in electrochemical properties

Conclusion

the Brunauer-Emmett-Teller (BET) surface area